Tire construction.



PATENTED JULY 17, 17906.

' of the United States all as fully described in plane of the -section j an inner tube c therein, 'and 1t is in connecand the under side of said-rim p'rovements in 'these elements ,UNITED PATENT @E `JQHN C, COLE, OF CHlCOPliitliALLS, MASSf CHUSETTS, ASSi'GllQt TG THE RISK RUBBER CGMPNY, OF CHlCOPEl FALLS, MASSACHU- SETIS, A CORPORATION..

TIRE CoNsiRUcrien.

Specification of Letters Patent.

Application liled March 16, l9 05. Serial No. 250,389f

Patented July 17, i906.

To all whom t may concern.' r

Be it known that I, JOHN C. Coin, a citizen of America, residingat Chicopee Falls, in the county of Hampden,

transversely-located slots .7L in the bese t of the tire, wln'chslots are openA in the plane of the under side ci the base, as in the said pat- A 5s ent, and on one end of sa'd bolts is a head and State ofy Massachusetts, have .invented T-shaped in cross-section, the lips lc of which new and pseful Improvements in Tire Con- I overlap the beveled edge f of the rim e and struction, of which the following is a specilithel outer edge of a retaining-ring m. The' cation. opposite endl of the bolt is provided with a-o This invention relates to vehicle-tire construction, and is the nature oflan improve.-v Inent onthe .construction shown in U ited States' Letters Patent issued to me on l arch 25, 1902, No. 696,391., the object of the invention being to 'improve the construction of the devices whereby the tire is` secured to the wheel, whereby they are made more effective, thespecication and summarized in .the claims.

The invention is ullyi illustrated in' the accompanying drawings, in which* i Figure l is a cross-sectional .view of a tire to which the invention has been applied, the beingl on line l 1, Fig. 2. Fig. 2 is a side elevation of`a-portion of a tire, showing portions of the improved clamping devices applied thereto. f

Referring to the drawings, a i1. dicates'the outer casing of a, pneumatic tire having a flanged base b, Iwhich is vdivided on a central circumferential line to permit the insertion of washer o, having lips 0 thereon siniilar'to the lips 7c on the head ofthe bolt and which, like the latter, overlap, respectively, the opposite beveled edge of the rim and the retainingring. The latter, like theA retaining-rings of the said patent, are made endless and are fitted over the outwardly-b`eveled exterior surfaces p ofthe iianged base t of the tire and in overlapping relation relative to the outer edges of the rim e. Unlike the con- 7o struction shown in said patent, however, the outer edge of these rings is curved on the upper side, as well as the lower, whereby all sharp edges against which the tire when deilated might bear are eliminated, and preferably these rings are provided with-a shoulder g, extending circumferentially around lthe ring at some little distance within' the outer edge thereof, against which the lips of and 7c of the washer o and the head jfo the bolt may 8o come to 'a bearing, whereby these rings may be more efl'ectually pushed inwardly on the .inclined surfaces p of the bese of the tire when the lnut r on the outer end ol the bolt is screwed up. l/Vhen the rings are made with- 85 out these shoulders g, there is a tendency ofthe lips on the washers iand holt-head to slide up on the curved outer surface oi' the rings and lorce the latter prematurely toward the rim c, whereas the proper action of these 9o parts is that in 4which the advance ofthe rings ori the inclined portion p ci the base effects a coincident binding of the .latter to the rim. of the wheel to which the tire is secured. A In this construction, however, there is a douln the drawings no pait oi the wheel has ble binding effect-"via, by the action' oi the 95 been shown but -the rim, except that a portion ring 011 the inclined portions ci the base, as of the telly has been outlined in dotted lines described, an d by the cani-hire action of the is indicated by d. To this is secured washers o and the heads of the bolts overlapthe circumferentially-disposed metal rim e, ping, as they do, two inclined surleces-"=fiz which, as in the said patent, is Hat and prefl l tion with a tire of this type that the invention is generally employed, though-not necessarily so, as it maybe used ingconnection with any tire having a flanged base, substantially as shown in the drawings. l

The lmechanical elements w ereby the tire is secured to the Wheel are substantially the same as those described in the said patent to me; and the invention consists in certain imand in the rim erably, as shown in the accompanying draw- Athe outer edge of the ringsand tl 't clamplngsjoverhangs each side ci' the telly a little, mg effect therefore is much gzeatffir t in when the construction deseribed'in the said prior patent to me 1s used, for in. that construction edge being beveled, as at A series of bolts g extend through that on the under side oi the rim anc that roo all of the eonstricting efectis due to the movenient of the rings on the inclined outer surfaces of the base of the tire.

The clamping effect in the use of the present invention is enough greater than that in the said 4patent to me to permit doing away with the recesses in the edge of the rims described in said patent, wher'eby circumferential displacement of the bolts is rendered impossible. Another advantage incidental to the herein-described construction is that as soon as the nuts r are loosened the disengagement of the washers o and the heads of the bolts from the rings and rims is most easily accomplished, because of the fact' that they bear entirely on outwardlyinclined surfaces. Furthermore, a distinct advantage in the present construction lies in they fact that there is a reater range ofaction between the bolt-hea and washer and -the rings m, constructed, as are the former, with the inwardly-extending lips ol and k, as theseV lips may be sodproportioned that the rings fm, may be pushe inward to operative position over the edge of the rims e before the body of the washer or bolt-head may come in contact with the edge of the rim or the edge of the base of the tire, whereas, as in the said prior patent to me, the clamping devices be corne ineffective for further action as soon the outer edge of the ring becomes coincident. with the plane of the edge of the base of the tire. I Having thus described my invention, wh at l claim, and desire to secure by Letters Patent of the United States, isF

l. The combination of a tire having a ilaiiged base, of a wheel-rim on which said base is seated, clamping-rin s to iit over the edges of said base in overlapping relation with the borders of the rini, the outer edges of the latter being beveled from the under side thereof outwardl together with bolts located transversely o the rim, and means on the bolts to engage the rings and the beveled edges of the iini whereby when nuts on the bolts are screwed up, said rings may be drawi'i toward the riin to secure the base of the tire to the latter. l

2. The combination of a tire having a ilanged base, of a wheel-rim on which said base is seated, clamping-rings to fit over the edges of said base in overlaiping relation with the borders of the rim, tlie outer edges of the rings and the rim being beveled,.to getlier with bolts extending transversely of the rim, and means on. the bolts to engage said beveled surfaces of the rings and of the rim, whereby the screwing up of nuts on the bolts may eil'ect the clamping of the tirebase tothe rim.

3. The combination with a wheel and a metal rim thereon, of a tire having a flanged base seated on saidrim, rings of larger diameA ter than the rim located in overlapping relation to thelatter on the base of the tire; bolts extending transversel of the rim through openings in the base o the tire, the upper si e of said rin s and the under side of the outer ed e of t e rims having inclined surfaces,

an a head and a washer on said bolts having lips thereon to bear on said inclined surfaces when a nut on the bolt is screwed up.

4. The combination with the rim of a wheel, the under side of the borders of which are outwardly beveled, of a tire having a ilanged base seated on said rim, and clamping-rings fitting over the edges of said base, and clamping means operatively engaging the beveled edges of said rim to move sai rings one toward the other and toward said lm. l i 5. A. tire construction comprising the rim of a Wheel to receive the lian ed base of a tire, clamping-rings of greater iameter than the rim,located on the base of the tire in overlapping relation'to the borders of the rim, said rin rs havin a circumferentiall disposed shou der on t e outer surface thereof; bolts extending transversely of the rim,- and means on the bolts to enga e the borders of salid rim and to bear on sai ring against the shoulders thereof to effect the clamping of the tire to the rim by screwing up bolts on y the nuts.

. ln a construction of the `class described,

'the combination with a tire having a flanged base, of the rim of awheel to receive said base, clamping-rings to fit over the latter provided with circuinferentially-disposed shoulders thereon, and beveled surfaces extending frorn'the base of said shoulders outwardly and downwardly, and suitable fastening devices having a bearing on the shoulders on the rings to secure the latter on the base of the tire.

7. In a construction of the class described, the combination with a tire having a flanged base, of the rim of a wheel to receive said base, and clamping-rings to fit over the latter provided with circumferentially-disposed shoulders thereon, and beveled surfaces extending'from. the base of said shoulders outwardly and downwardl the under side of the borders of said rim being also beveled in a plane converging toward the plane of the beveled surfaces on the rings, clamping-bolts extending transversely of the rim andv pro vided with flanged heads or washers to engage .the beveled surfaces of said rin Ys and rims by the screwing up of nuts on sai bolts.

WM. H. (,IiAPiN, K. l. CLEMoNs.

IOO 

